ptc liquid heater

Abstract

The invention relates to a PTC liquid heater and belongs to the technical field of liquid heating devices. The PTC liquid heater comprises a heater body, a liquid inlet interface and a liquid outlet interface, wherein a liquid heating cavity is formed at the center of the heater body, a left sealing cover and a right sealing cover are arranged at the left end and the right end of the heater body in a matched mode, PTC element mounting cavities are respectively formed on a front side wall and a rear side wall of the heater body, and PTC elements are arranged in the mounting cavities. The liquid inlet interface is arranged on the right sealing cover and communicated with the liquid heating cavity, the liquid outlet interface is arranged on one of the left sealing cover and a top wall of the heater body, and a bottom wall of the heater body forms a heater body mounting wall. The PTC liquid heater is characterized in that a group of heating cavity cooling fins protruded out of a cavity wall surface of the liquid heating cavity are formed on the cavity wall of the liquid heating cavity at intervals in the length direction along the length direction of the liquid heating cavity. The PTC liquid heater is good in heat dissipation effect and high in heating efficiency, saves energy and materials, prevents the heater body from bursting, is safe to use, does not damage the PTC elements when pressing a cavity top wall and a cavity bottom wall and is good in intelligence effect.

Description

technical field

[0001] The invention belongs to the technical field of liquid heating devices, and in particular relates to a PTC liquid heater, which is applied to cookers such as kitchen utensils such as range hoods, and provides support for a pipeline connected to it at one end and with a nozzle at the other end. The centrifugal impeller of the range hood implements hot water or steam for cleaning. Background technique

[0002] The PTC mentioned above refers to a positive temperature coefficient thermistor, and the PTC liquid heater mentioned above refers to a heating facility that uses PTC to heat up liquid (mainly water). Technical information about PTC liquid heaters can be found in published Chinese patent documents, typically such as "A PTC Liquid Heater" recommended by Utility Model Patent Grant No. CN201476268U and "A PTC Liquid Heater" provided by CN201937849U ". The structural feature of these two patents is that a liquid heating cavity (the patent is called a ...

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